If I were you and willing to do some trading on Bitcoin's price, I'd better head to some automated platform that allows me to open and close an order in a few seconds.
Well the question is how much you are going to start trading with those automated platforms. I think 0.01
BTC i already enough to start minimum trading. And that is going to depend on how you are going to make your capital grow with the potential alt coins that you are going to buy, just make sure you know how to trade.